10. Don't forget to s      off the lights before you leave.

9.She spoke English with a slights Irish     (口音) .

8.British English and American English d      in many aspects, such as spelling and pronunciation.

7.In the past few years, the company's exports have been increasing     (持续地) .

6.It is      (明显的) that the new typist is incompetent.

5.Some of the people      (排队) for tickets had been there since dawn.

2.The hotel offers its guests a wide v      of amusements.

1.Scientists sometimes c     the human brain to a computer.